The night James and Lily died was the night Sirius Black married his wife Vivian Ravel. Even before the wedding ceremony, Sirius learned that James and Lily had been killed by Voldemort, and he had to disapparate to the Potter House.
Vivian was fully expecting Sirius's arrival, but she received news - he was slandered and entered Azkaban...
Notes for reading the article——
①Vivian will become a professor at Hogwarts.
②The plot begins in the third grade, but Vivian has already married Sirius. Although there is no wedding ceremony, she has become a woman and changed her name to Vivian Black.
③Various changes to the plot! ! !